FAQ

What if my car fails the smog test?

If your vehicle fails, you must pay the cost of the test. Smog Hut can help you determine why your vehicle failed and how it may be repaired to pass the second test. Please note: a technician is required by law to test a vehicle without discussing possible fail issues with the vehicle owner beforehand. The technician cannot tell you your vehicle may fail prior to testing!

If your vehicle has failed twice, you may be eligible for a waiver after spending a minimum of $450 on repairs at a 2G facility such as Smog Hut. To learn more about waivers, visit any of our three locations or give us a call. Note: diesel vehicles have different waiver requirements.

Are emissions components covered under warranty?

Under federal law, emissions components can be covered under warranty for up to 8 years or 80,000 miles, whichever occurs first. For example, if you need to replace a catalytic converter, call your car dealer and ask if it is under warranty. You may be eligible to have the repair done at no cost to you, saving yourself hundreds of dollars.

How is a smog test performed?

Nevada uses On-Board Diagnostics (OBDII) testing for 1996 and newer light duty gas vehicles. The inspector will connect an analyzer to the OBD computer in your vehicle and read the data from the emission control systems.

A technician will visually check the following items on on light duty gas powered vehicles older than 1996 and all 1968 and later model heavy duty gas powered vehicles:

• Gas Cap
• Air intake system
• Exhaust gas recirculation system
• Catalytic converter
• Fuel inlet restrictor

Diesel tests are run on a dynamometer using an opacity meter to read visible particulate emissions.

Can you tell me if my car will pass before you test it?

It is against state regulations for a technician to discuss possible failure conditions prior to testing your vehicle. This is considered pre-testing and is against the law. All emissions test results are immediately sent to the NV DMV electronically and pre-testing is strictly prohibited.

What about my AWD Diesel?

Unlike a gasoline emissions test, diesel tests are run on a dynamometer using an opacity meter to read visible particulate emissions. Full-time All Wheel Drive and Traction Control Diesels with a 184” wheelbase or less are tested on a special all-wheel drive dynamometer. Smog Hut at 2218 E Cheyenne Ave, North Las Vegas is currently the only location in Clark County capable of testing these vehicles.